This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A study was designed to investigate the effects of two variables - (1) a student's level of ... (Read 30 times)

Davideckstein7

  • Hero Member
  • *****
  • Posts: 555
on: Jan 16, 2020
A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 500 with a standard deviation of 40 on a standardized test. Assuming a bell-shaped distribution, what percentage of scores exceeded 420?
◦ approximately 95%
◦ approximately 84%
◦ approximately 97.5%
◦ approximately 2.5%
Statistics: Informed Decisions Using Data ¦ Sullivan ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Davideckstein7 on Jan 16, 2020

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jan 16, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


Davideckstein7

  • Member
  • Posts: 555
Reply 2 on: Jan 16, 2020
Great answer, keep it coming :)

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

The effects of emphysema. The effects of emphysema.
The Morris Adjustable Chair, designed by Philip Webb, made by Morris, Marshall, Faulkner & Co. The Morris Adjustable Chair, designed by Philip Webb, made by Morris, Marshall, Faulkner & Co.
Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis
Rising Sea Level Rising Sea Level
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Manhattan plots resulting from a genome-wide association study of seven common human disease Manhattan plots resulting from a genome-wide association study of seven common human disease
Video: Central Nervous System Animation

For a complete list of videos, visit our video library